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2 years ago

What is the slope of the line that passes through (4,1) and (7,-2)?

1 answer:

5 0

Slope formula;
m = y2 - y1/ x2 - x1 point(x, y) = (4, 1), (7, -2)

m = -2 - 1/ 7 - 4
m = -3/3
m = -1

the slope is -1.

hope this helps, God bless!

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The perimeter of a kite is 51 meters. If one side measures 18 meters find the measure of the opposite side.

puteri [66]

Let n and m be the sides of the kite
perimeter = 2(m+n)
51 = 2(18+m)
51/2 = 18 + m
25.5 - 18 = m
m = 7.5m

4 0

2 years ago

2. A fair dice is rolled. What is the probability that a number divisible by 3 is rolled?

Anni [7]

Answer: 2

Step-by-step explanation:

A dice has 6 numbers on it, 1,2,3,4,5, and 6.

how many pairs of 3 can you make?

(1 2 3) (4 5 6)

There are 2 pairs, so your answer is 2

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3 years ago

A system of equations is given below. y=1/2x-3 and -1/2x-3. Which of the following statements best describes the two lines?

pantera1 [17]

"They have different slopes but the same y-intercept, so they have one solution" is the statement which best describes the two lines.

Answer: Option D

Step-by-step explanation:

Given equations:

$y=\left(\frac{1}{2} \times x\right)-3$

$y=\left(-\frac{1}{2} \times x\right)-3$

As we know that the slope intercept form of a line is

y = m x + c

So, from equation 1 and equation 2 we can see that

$m_{1}=\frac{1}{2} \quad \text { and } c_{1}=-3$

$m_{2}=-\frac{1}{2} \text { and } c_{2}=-3$

So, from the above expressions, we can say that both lines have different slopes but have same y – intercept with one common solution when x = 0.

4 0

3 years ago

Read 2 more answers

A person gets on and off a bathroom scale four times. The four readings (in pounds) are 148, 151, 150, and 152. Each time after

Ganezh [65]

Answer:

See explanation below

Step-by-step explanation:

Since each time after the person gets off the scale, the reading is 2 lb the person's weight must be near the mean of

148-2, 151-2, 150-2, 152-2; that is to say, near the mean of 146, 149, 148, 150 = (146+149+148+150)/4 = 148.25

We could estimate the uncertainty as the standard error SE

$\bf SE=\frac{s}{\sqrt{n}}$

where

s = standard deviation of the sample

n = 4 sample size.

Computing s:

$\bf s=\sqrt{\frac{(146-148.25)^2+(149-148.25)^2+(148-148.25)^2+(150-148.25)^2}{4}}=1.479$

So, the uncertainty is 1.479/2 = 0.736

It is not possible to estimate the bias, since it is the difference between the true weight and the mean, but we do not know the true weight.

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2 years ago

Is this a proportional relationship? Please help!

OLEGan [10]

Answer:

Step-by-step explanation:

If you draw a line, it will not go through the origin and there isn't a constant rate of change.

6 0

1 year ago